2 year warranty

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most used power toothbrush brand by dental professionals
Experience our most advanced electric toothbrush: Philips Sonicare DiamondClean Prestige 9900 with SenseIQ technology. It enhances our proven sonic technology with intelligence, sensing and adapting to deliver personalized oral care.
Everyone cleans differently, so we designed this brush head with multi-angle bristles to keep plaque removal on course no matter your technique. Our All-in-One A3 brush head delivers our best cleaning and removes up to 20x more plaque, 15x healthier gums in six weeks, and up to 100% more stain removal in less t...
SenseIQ Technology helps balance your brushing style and senses your pressure, motion and coverage up to 100 times per second while you brush. If you apply too much pressure, the toothbrush will step in and automatically adjust the intensity level, helping to protect your teeth and gums.
Philips Sonicare toothbrushes clean gently yet effectively and care for your teeth and gums with 62,000 bristle movements per minute. Sonicare Fluid Action supports the bristles to clean by driving fluid deep between teeth and along the gumline.
Enhance your oral care routine with 15 brushing settings. Whether you're looking for a deep clean or a specific focus, you can have it with this electric toothbrush. Select from five modes - Clean, White+, Gum Health, Deep Clean, and Sensitive - and adjust to one of three intensity levels for a personalized clean. Simply open the app, select your preferences, and let your toothbrush do the rest.
Achieve your oral health goals with your Sonicare toothbrush and app. The two pair seamlessly to provide real-time coaching, personalized guidance, and tailored insights to improve your brushing routine. Track your progress, refine your technique, and receive continuous feedback to make the most out of each brushing session. Together, you are unstoppable. Meanwhile, auto-syncing keeps brushing data up to date in the app, even when you don't brush with the app by your side.
From its sleek design to its state-of-the art charging stand, every detail of this electric toothbrush is crafted with attention to detail by our dedicated designers and engineers. Plus, with the included charging travel case, you can maintain your oral care routine, even while on the go.


At Philips, we are committed to reducing our environmental footprint, delivering you more sustainable products that last longer.
3.9
of 5
131
Reviews
NoTurkeyTeethNeeded
12/06/2026
United Kingdom
Verified buyer
HX9992 diamond clean sonic brush totally awesome
The philips HX9992 diamond clean toothbrush is awesome, although a bit expensive , however i waited for a black friday deal and it was still expensive but far cheaper than before. But what can I say it is great and that good i purchased another for my partner and she couldn't believe how well it cleaned her teeth. And the travel case is great too. Product support is awesome, as mine after about a year started to be a bit noisy with a common fault in which the screw holding the metal head plug worked loose. This was quickly swapped out by their support which was awesome as the brush was expensive in the first place. Overall wow it great and worth it.
Pros
Best toothbrush ever
Cons
Expensive but a good investment in your teeth
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2026-06-12
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2026-06-12
Novanne
25/02/2026
United Kingdom
Verified buyer
Nice electruc toothbrush from Phillips
Have had this a while now, I like the different options for cleaning, it charges very well and lasts ages, love it
Pros
Nice electric toothbrush, does everything it says it will
Cons
Round brush head
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2025-01-25
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2025-01-25
MisterP
30/10/2025
United Kingdom
Best toothbrush you can buy!
This is the best toothbrush I have used. It does everything it says on the box. My teeth are cleaner and gums feel better. A lot better than my Oral b IO toothbrush. Worth the extra expense!
Pros
Toothbrush cleans teeth and gums perfectly
Cons
None
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2025-09-30
Yes, I recommend this product
This review was made for DiamondClean Prestige HX9992/11 Sonic electric toothbrush with SenseIQ - Champagne
Date of Use 2025-09-30
What features can I activate or deactivate from the toothbrush handle?
How does the Scrubbing Feedback feature work?
How does Sonicare 9900 Prestige work with the app?
How does the BrushPacer work on my Philips Sonicare Prestige Toothbrush?
Can I use Sonicare 9900 Prestige if I wear braces or have dental modifications?
How do I turn the Adaptive Intensity feature on and off?
How do I change brushing modes on the Sonicare app?
How do I connect my Philips Sonicare 9900 Prestige toothbrush to the Sonicare app?
How does the Adaptive Intensity feature work?
How do I activate the Scrubbing Feedback on my Philips Sonicare?
How do I place my brush head in the traveling case?
What is Sonicare SenseIQ technology?
How do I charge my toothbrush handle with the travel case?
How do I charge my Sonicare 9900 Prestige handle on the charging base?
How do I know when to replace the brush head?
How many buttons are on my Sonicare 9900 Prestige?
How can I safely dispose of the battery from my Sonicare 9900 Prestige toothbrush?
How does the brushing guidance work in the Sonicare app?
Can I sync the Sonicare app with the Apple Health app?
In which countries is the Sonicare app available?
Which devices are compatible with the Sonicare App / Sonicare for Kids App?
Can I use my Philips Sonicare Toothbrush in the shower?
Which brush head fits my Sonicare toothbrush?
How do I enable or disable the pressure sensor on my Sonicare?
What do the symbols on my Sonicare toothbrush mean?
Get help with your product, find manuals, learn the best tips and tricks, and troubleshoot any problems
A3 Brush head on DiamondClean Prestige 9900 vs. a manual toothbrush.
vs. a manual toothbrush
in 6 weeks vs. a manual toothbrush.
in less than 2 days vs. a manual toothbrush.